regency yithemes image_sizes

function yit_setup_theme() {

    /**
     * Set up the content width value based on the theme's design.
     *
     * @see yit_content_width()
     *
     * @since Twenty Fourteen 1.0
     */
    if ( ! isset( $GLOBALS['content_width'] ) ) {
        $GLOBALS['content_width'] = apply_filters( 'yit-container-width-std', 1170 );
    }

    //This theme have a CSS file for the editor TinyMCE
    add_editor_style( 'css/editor-style.css' );

    //This theme support post thumbnails
    add_theme_support( 'post-thumbnails' );

    //This theme uses the menus
    add_theme_support( 'menus' );

    //Add default posts and comments RSS feed links to head
    add_theme_support( 'automatic-feed-links' );

    //This theme support post formats
    add_theme_support( 'post-formats', apply_filters( 'yit_post_formats_support', array( 'gallery', 'audio', 'video', 'quote' ) ) );

    if ( ! defined( 'HEADER_TEXTCOLOR' ) )
        define( 'HEADER_TEXTCOLOR', '' );

    // The height and width of your custom header. You can hook into the theme's own filters to change these values.
    // Add a filter to twentyten_header_image_width and twentyten_header_image_height to change these values.
    define( 'HEADER_IMAGE_WIDTH', apply_filters( 'yiw_header_image_width', 1170 ) );
    define( 'HEADER_IMAGE_HEIGHT', apply_filters( 'yiw_header_image_height', 410 ) );

    // Don't support text inside the header image.
    if ( ! defined( 'NO_HEADER_TEXT' ) )
        define( 'NO_HEADER_TEXT', true );

    //This theme support custom header
    add_theme_support( 'custom-header' );

    //This theme support custom backgrounds
    add_theme_support( 'custom-backgrounds' );

    /*
     * Switch default core markup for search form, comment form, and comments
     * to output valid HTML5.
     */
    add_theme_support( 'html5', array(
        'search-form', 'comment-form', 'comment-list',
    ) );

    // We'll be using post thumbnails for custom header images on posts and pages.
    // We want them to be 940 pixels wide by 198 pixels tall.
    // Larger images will be auto-cropped to fit, smaller ones will be ignored. See header.php.
    // set_post_thumbnail_size( HEADER_IMAGE_WIDTH, HEADER_IMAGE_HEIGHT, true );
    $image_sizes = array(
        'blog_small'                         => array( 283, 170, true ),
        'blog_small_xl'                      => array( 406, 175, true ),
        'blog_masonry'                       => array( 283, 0 ),
        'blog_masonry_xl'                    => array( 420, 0 ),
        'blog_big'                           => array( 1138, 547, true ),
        'blog_big_xl'                        => array( 1776, 794, true ),
        'blog_single_big'                    => array( 1138, 547, true ),
        'blog_single_big_xl'                 => array( 1776, 794, true ),
        'blog_section'                       => array( 116, 84, true ),
        'blog_widget_compact'                => array( 84, 84, true ),
        'portfolio_small'                    => array( 263, 325, true ),
        'portfolio_small_xl'                 => array( 504, 623, true ),
        'portfolio_thumb'                    => array( 65, 65, true ),
        'portfolio_single_big_featured'      => array( 763, 532, true ),
        'portfolio_single_big_featured_xl'   => array( 1175, 819, true ),
        'portfolio_single_big_lookbook'      => array( 763, 0, false ),
        'portfolio_single_big_lookbook_xl'   => array( 1175, 0, false ),
        'testimonial_thumb'                  => array( 58, 58, true ),
        'thumb_team_big'                     => array( 360, 262, true ),
        'thumb_team_big_xl'                  => array( 420, 423, true ),
        'featured_product_widget'            => array( 261, 324, true ),
        'featured_product_widget_xl'         => array( 420, 521, true ),
    );


    $image_sizes = apply_filters( 'yit_add_image_size', $image_sizes );

    foreach ( $image_sizes as $id_size => $size ) {
        add_image_size( $id_size, apply_filters( 'yit_' . $id_size . '_width', $size[0] ), apply_filters( 'yit_' . $id_size . '_height', $size[1] ), isset( $size[2] ) ? $size[2] : false );
    }